Quadrupole collective dynamics from energy density functionals: Collective Hamiltonian and the interacting boson model (CROSBI ID 172775)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Nomura, K. ; Nikšić, Tamara ; Otsuka, T. ; Shimizu, N. ; Vretenar, Dario
engleski
Quadrupole collective dynamics from energy density functionals: Collective Hamiltonian and the interacting boson model
Microscopic energy density functionals have become a standard tool for nuclear structure calculations, providing an accurate global description of nuclear ground states and collective excitations. For spectroscopic applications, this framework has to be extended to account for collective correlations related to restoration of symmetries broken by the static mean field, and for fluctuations of collective variables. In this paper, we compare two approaches to five-dimensional quadrupole dynamics: the collective Hamiltonian for quadrupole vibrations and rotations and the interacting boson model (IBM). The two models are compared in a study of the evolution of nonaxial shapes in Pt isotopes. Starting from the binding energy surfaces of 192, 194, 196Pt, calculated with a microscopic energy density functional, we analyze the resulting low-energy collective spectra obtained from the collective Hamiltonian, and the corresponding IBM Hamiltonian. The calculated excitation spectra and transition probabilities for the ground-state bands and the γ-vibration bands are compared to the corresponding sequences of experimental states.
PACS: 21.10.Re; 21.60.Ev; 21.60.Fw; 21.60.Jz
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o izdanju
84 (1)
2011.
014302-1-014302-9
objavljeno
0556-2813
10.1103/PhysRevC.84.014302